Home / 31,490.64-43,441.92-19,567.98

Finding the Fourth Proportional to 31,490.64, 43,441.92 and 19,567.98

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Solution

The fourth proportional to 31,490.64, 43,441.92 and 19,567.98 is: 26,994.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,490.64 : 43,441.92 = 19,567.98 : x
  2. Step 2: Convert to fraction form
    31,490.64/43,441.92 = 19,567.98/x
  3. Step 3: Cross multiply
    31,490.64x = 43,441.92 × 19,567.98
  4. Step 4: Simplify right side
    31,490.64x = 850,070,621.72
  5. Step 5: Solve for x
    x = 850,070,621.72/31,490.64
  6. Step 6: Final answer
    x = 26,994.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.